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A067906
Primes of the form floor((5/4)^k).
2
2, 3, 5, 7, 11, 211, 1009, 3851, 7523, 9403, 18367, 213821, 815663, 2010764683, 831632781251, 23636425261531, 537430088605367, 7896825413969130677, 226627774989027955951103, 451298593966207394017315520293
OFFSET
1,1
LINKS
Charles R Greathouse IV, Table of n, a(n) for n = 1..31
MATHEMATICA
Union[Select[Floor[(5/4)^Range[0, 400]], PrimeQ]] (* Harvey P. Dale, Jan 06 2012 *)
PROG
(PARI) for(n=1, 1e4, if(ispseudoprime(t=floor((5/4)^n)), print1(t", "))) \\ Charles R Greathouse IV, Feb 17 2011
CROSSREFS
Sequence in context: A186449 A046480 A235000 * A029980 A046481 A082625
KEYWORD
nonn
AUTHOR
Benoit Cloitre, Mar 03 2002
STATUS
approved